Electrical fuse.



H. W. YOUNGL4 ELECTRICAL FUSE. ^PPL|cAT|ou"r|Lu-Mn. l2. ma.

Patented July 31, 1917.

Zia/Awa?? unirsi) STATES PATENTQFFIQE;

HARRY W. YOUNG, OF CHICAGO, ILLINQIS.

ELECTRICAL FUSE.

fuse members, and has for its object, the

provision 'of an improved construction of this character arranged to aii'ord a goed electrical connection and tight closure.

The inventionconsists in the combinations and arrangements of parts hereinafter described an claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this specification, and in which, Figure 1 is a side view shown partially in -I section .of la fuse embodying my invention,

Fig. 2, a section taken 'on line 2 -2 of Fig` l, 'ig'. -3, an ,enlarged end, view of the fuse shown partially in section, i i

Fig. 4 an enlarged section taken on line A1--l'ofli`ig.?-,

Fig. 5,'an enlarged section taken on line 5 5 ofFig. 1,

Fig.' 6, a perspective viewof'a metallic bagel enilployed Iin the construction, and

' ig. aplnte employed in the construction. The

' illustrated in the drawing comprises an outer tube l8 of insulating material and closed at one end bymeans of a metallic cap 9. 'A

screw 10 is swiveledin cap 9, as indicated 4o and a' screw 11 is slidably mounted in an in'- wa rdly opening recess 12 formed inthe outer' end of cap 9, 4as shown. A tubular fuse lcartridge 13 is arranged in tube 8 and has one end -closedb means ofa metallic plnglfl provided wit threaded sockets adapted to receive screws 10 and 11, said cartridge con- `taining; n. fusible member 15 of any usual or desired form, and having one end connected Q 5 5- movemen't, said screw may be withdrawn itscnlarged inner end rests'in-re- Specification o! Letters Patent.

opening .ada te 'Plate 20ia a so provided'iwith' lianges 20 g8. The eo perspecti' 've view of 'a closure` 13 is closedby a metallicplate23` and e preferred A form I of construction, as-

an opening to permit 4so as to' afford' good-'electrical connection 9 and 'goed electrical connec mounting Patented Juiy einer?.

appiicmoniiea ianuaryiaisis. seria'iimmai.

cess 12 and' screwy 10 tightened' in place, whereihpon screw 11 ina also be tightened, thus e ectng a good e ectricalconnection. Thus the advantages -ofadouble screw cDnnection may be maintained and-both screwsv permanently mountedithe device to prevent removal or misplaceiiieiit thereof.y vBy s'wivelingone of the 'screws and mountingV Y the other for 'longitudinal movement. `the 85 swiveled screw ma be readil land epinf pletel tightened-`w1thout in erenee frmff. the o er screw, whereuponsaid other'screw may in turn bet' htened; A metallic ban lis arranged over the yond the end of said tube Vand is rovided at onefside with auinw y flan e' 17, as shown. -On itsothe'r side, bend 161s provided with inwardly' o-set portionsl '76 .anda notchf19, as shown in Fig; 6.' A'. clo- 4' sure'plate is arranged to lit within the end of 17, said pnbeing provid 4with a lip 2i projecting through-notch 19 and overla'pphing 80 the band 16. ip 21 is'l provided` w1 "screi'v 22 swiveled therein and the 'band' 16 and.tube 8= are. rovided-with aI threaded l to- -.reeeiv e -said screw.'

adapted to fit the formed eetinga wardlyA off-'setV portions 18, thus4 tight seal and closure for the'endoftube rresponding `end offese cartrid corresponding end'24e'fjusible member 15 'is passed -4through said' plateiurned-'out- .f Y

wardly andbaekwardlyto lie between lip 21 and band 16, saidemlf2e:l beingprovldedwith the passage of screw 22 '95 with the end vof fusible meinberi. arrangement furnishes' a tight closure and seal for the end of tube 8 and also aords'4 iop ood electrical connection fusible memer 15.' By swivelingtheuheads of the screws, the separation of thelscrew heads L# lfrom their coperating is prevented sc 'that surreptitious insertion of fusible. i'iiei'nbers'thereunder isv prevented) The-outer tube Sis' provided at one sidewith aan, inwardly extendinv roeetion 25 and the cartridge 13 is provi ed,

periiiit insertion 'of said cartridge in tube 8..

-tiomng of @cartridge fqreagagemenclby.

7o. opposite end of tube 8 to'projectslightly be :1"

ae@A

withanzeeess l 26 alpted'to receive said projection so as to This arrangement ,the piopeirpogi screws 10 and 11, and by arranging the'pr'ojection and de ression in different positions for fuses of diiferent capacities, the misuse, of the fuses will be prevented.

While I 'have illustrated and described the preferred form of construction for carryin my invention into eil`ect,'this is capable o variation and modification without departing from the spirit of the invention. I, therefore, do not wish tor be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope ofthe ap ded-claims aving described my invention what I claim as ,new and desire to secure'by Letters Patent is:

1. A fuse comprisin a tube; a metallic band around one end o said tube, said band being -provided atV one side with a projection extending partly across the end of said tube; a closure p latc arran ed to it under said projection and provide with means for securin it to said band; a fusible member in said tu electrically connected at the cor- 'nding end with said band; and means for eii'ectin electrical connection with the other endo said fusible member, substantially'as described'. 2. .A fuse comprisin a tube;"a metallic band around one end o said tube, saidband being' exten g partly across the end of sai tube;

end of said fusible member, substantially as rovided at one yside with a pro'ection a closure plate arranged to t under said projection; a 1i on said plate fitting against 35 the side of sai band; a screw onsaid lip engaging said band; a fusible memberin said tube electrically connected at the correslonding end with said band; and means for ecting electrical connection with the other 40 described. l

3. A fuse comprisin a tube; a metallic f band around one end o said tube, said band being rovided at one side with a projection exten ing partly across the end of said tube, the other side of said band being inwardly offset and notched; a `closure plate arranged to lit under aid projection; a lip on said plate passing rough said notch and tting against the slde of said band; a screw on said lip engaging said band; Hanges on said plate fitting the space formed by said. inwardly offset portions; a fusible member in said tube electrically connected at the corresponding end with said band; and means for effecting electrical connection with the other end Vof said fusible member, substan tially as described.. Y I

' In testimony whereof I have signed my to` name to this specificationin the presence of twosubscribing witnescss.

HARRY w. YOUNG.

Witnesses:

Josmm AR. H.-Porrs, B. G. RICHARDS. 

